ASA S12 1-1983 American National Standard Guidelines for Preparation of Standard Procedures to Determine the Noise Emission from Sources《确定发射源标准程序指南ASA 49》.pdf
Reaffirmed by ANSI June 28, 2011 Reaffirmed by ANSI April 16, 1990 Reaffirmed by ANSI August 8, 1996 Reaffirmed by ANSI July 10, 2001 Reaffirmed by ANSI May 3, 2006 5HDIILUPHGE$16,0D